CN107445533A - A kind of matching method of mortar - Google Patents

A kind of matching method of mortar Download PDF

Info

Publication number
CN107445533A
CN107445533A CN201710869423.0A CN201710869423A CN107445533A CN 107445533 A CN107445533 A CN 107445533A CN 201710869423 A CN201710869423 A CN 201710869423A CN 107445533 A CN107445533 A CN 107445533A
Authority
CN
China
Prior art keywords
mortar
fine aggregate
cement
water
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710869423.0A
Other languages
Chinese (zh)
Other versions
CN107445533B (en
Inventor
龙凤全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Three Sets Of Sichuan County Portland Commodity Concrete Co Ltd
Original Assignee
Three Sets Of Sichuan County Portland Commodity Concrete Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Three Sets Of Sichuan County Portland Commodity Concrete Co Ltd filed Critical Three Sets Of Sichuan County Portland Commodity Concrete Co Ltd
Priority to CN201710869423.0A priority Critical patent/CN107445533B/en
Publication of CN107445533A publication Critical patent/CN107445533A/en
Application granted granted Critical
Publication of CN107445533B publication Critical patent/CN107445533B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00198—Characterisation or quantities of the compositions or their ingredients expressed as mathematical formulae or equations

Abstract

The present invention discloses a kind of matching method of mortar, comprises the following steps：(1) just determine net paste content and determine density；(2) fine aggregate and dosage are determined；(3) the preliminary benchmark match ratio of mortar is determined；(4) preliminary benchmark match ratio trial is pressed, and detects workability；(5) production mix proportion and trial mix detection are determined.Technical scheme is matched with fine aggregate, net slurry, fluctuation fully according to raw material, production influences with construction link, gather materials on the spot, data are detected as foundation using actual raw material, avoid losing contact with reality using empirical data, while can reach quality controllable, cost is reduced, the effect to economize on resources.

Description

A kind of matching method of mortar
Technical field
The present invention relates to building material technical field, and in particular to a kind of matching method of mortar.
Background technology
Mortar is a kind of construction material for adding water mix to form by fine aggregate and binder materials, from big using being above divided into two Class：Masonry mortar and motar, masonry mortar are that the masonries such as stone, brick, building block are risen and bonded, padded and pass into masonry The mortar of power effect, motar are mainly used in the finishing in masonry face.In addition, mortar can be divided into using cement as main binder materials it is mixed Close mortar and cement mortar.
Mortar is general in being of wide application for existing market, and masonry house is distributed more widely, the wall of multi-rise building, and The decorations in all houses will use mortar, and concrete is more accounted for using 50% or so of total amount according to just slightly counting.Country is for ring Protect energy-conservation and vigorously promote the use premixing mortar and assembled architecture, but mortar is irreplaceable all the time in construction market share, research It is still critically important technical work with mortar is prepared.
The cooperation ratio method of mortar includes at present：(1) COEFFICIENT K is determined according to construction level, calculates the preparation of mixed mortar Intensity；(2) cement consumption of every cube of mixed mortar is calculated；(3) dosage that cement consumption is lime paste is subtracted by 350kg；(3) It is sand dosage by the bulk density value of every cubic metre of drying regime sand；(4) water is selected in 210~310kg by requirements such as denseness (being the aqueous of 115~125mm lime pasties without denseness).
Above-mentioned mortar mix ratio method is primarily present problems with：
(1) change of the standard deviation of mixed mortar preparation strength and mortar strength is without relation；(2) cement consumption and glue Than not contacting directly；(3) binder materials simply comes in and goes out greatly very much per square 350kg with actual；(4) it is close by the accumulation of every cubic metre of sand Spend for sand dosage, first, the bulk density change of sand is greatly, second, also larger with actual variance through practice；(5) water consumption is scope, Denseness is also scope, and scope is to greatly increase mortar configuration difficulty and trial time to the result of scope；(6) live cement mortar Preparation be to directly give scope from all selecting after table table to determine cement from code, flyash, sand, the dosage of water tried Match somebody with somebody, scope allow more greatly be engaged in mortar technical staff be more difficult to control in it Technique Rule.
The content of the invention
In view of this, the application provides a kind of matching method of mortar, is matched with fine aggregate, net slurry, fully according to According to the fluctuation of raw material, production influences with construction link, gathered materials on the spot, and detects data as foundation using actual raw material, avoids making Lost contact with reality with empirical data, while can reach quality controllable, reduce cost, the effect to economize on resources.
To solve above technical problem, technical scheme provided by the invention is a kind of matching method of mortar, the proportioning Method comprises the following steps：
(1) just determine net slurry and determine density：The raw material of the net slurry includes cement, water, lime paste, admixture, outer Add agent, determine the raw materials used index of the net slurry, by the strength grade of the mortar of required proportioning, calculate required proportioning Preparation strength, the water-cement ratio of mortar, calculate each the first of raw material by water-cement ratio and determine dosage, then prepare net slurry, and determine net slurry Density；
(2) fine aggregate and dosage are determined：The fine aggregate of at least one grade is taken, is dried to constant weight, after proportioning mixing, detection Sieve test data, apparent density, bulk density, accumulation voidage and the water absorption rate of fine aggregate, and with sieve test data According to fine aggregate population mean particle diameter is calculated, to carry out volume equivalent conversion by fine aggregate population mean particle diameter, obtaining thin bone Expect square volume, according to fine aggregate population mean particle diameter and fine aggregate square volume, according to etc. pressure application and just determine volume The maximum of method determines fine aggregate clear distance, and the theoretical porosity of fine aggregate, fine aggregate folk prescription are calculated successively by above-mentioned each parameter The volume of dosage, the folk prescription dosage of fine aggregate, and determine the folk prescription volume of net slurry；
((3) determine the preliminary benchmark match ratio of mortar：It is converted into by just fixed net each raw material of slurry in the weight ratio of total amount Now each plant demand of net slurry total amount, obtain preliminary benchmark match ratio, and the folk prescription dosage and fine aggregate folk prescription for passing through net slurry Dosage obtains starching bone ratio；
(4) preliminary benchmark match ratio trial is pressed, and detects workability：By first adjusting and reducing the clear distance of two-stage fine aggregate, then with Mode of the bone than the clear distance of the control increase and decrease fine aggregate of increase and decrease 0.5~1.5% is starched, trial simultaneously examines workability, to meet workability And clear distance minimum determines the dosage of fine aggregate；The workability includes denseness, water-retaining property, unit weight；
(5) production mix proportion and trial mix detection are determined：Take net slurry, fine aggregate to carry out trial mix by production, Testing index, lead to Cross Testing index and benchmark match ratio is converted into production mix proportion, and carry out the optimization of production mix proportion, each raw material is passed through into life Production match ratio mixture produces the mortar.
Preferably, the raw materials used index of step (1) the net slurry of measure is specially：As needed for specification is determined or counted The standard deviation of the mortar of proportioning, determine 28 days compression strength of net slurry, strength of cement grade value, by specification determination or test statistics Cement redundancy, experiment determine the volume of admixtures water-reducing ratio and additive, detect the solid content of additive, and experiment determination is mixed Volume, moisture content, intensity activity index and the water demand ratio of material are closed, experiment determines the denseness of lime paste.
Preferably, the computational methods of the preparation strength of step (1) described mortar use below equation：The preparation strength of mortar The strength grade * coefficients of=mortar, according to construction level, coefficient is 1.15 when the construction level is excellent, described for the coefficient Coefficient is 1.20 when construction level is general, and coefficient is 1.25 when the construction level is poor.
Preferably, mortar described in step (1) includes mixed mortar, cement mortar, cement-flying ash mortar, the mortar Water-cement ratio pass through be gelled total dosage and water consumption and determine.
It is more highly preferred to, the determination method of the water-cement ratio of the mixed mortar includes：
(1) when being not added with additive：
Cement consumption：Qc=1000* (fm, 0- β) * ∮/(α * fce), wherein, Fm, 0=k*f2, fce=γ c*fce, k；
Lime paste dosage：Qg=350-Qc；
Lime paste volume：I%=Qg*100%/(Qg+Qc)；
Slurry just determines total amount：Jy=Qc+Qg+Qs；
The water-cement ratio W=Qs/ (Qc+Qg) of mortar；
Water consumption Qs=d+ (e-d) * (c-a)/(b-a)；
Wherein：fm,0：Mortar preparation strength, unit Mpa；
K-factor：Construction level, excellent 1.15, general 1.20, poor 1.25；
f2：Strength classes of mortar, unit Mpa；
Qc：Cement consumption, units/kg；
∮：Strength of cement grade reduction coefficient, when strength of cement grade is 32.5, ∮=1, strength of cement grade 42.5 When, ∮=32.5/42.5；
fce：Cement Actual measurement intensity, unit Mpa；
α：Characteristic coefficient takes 3.03, β：Characteristic coefficient takes -15.09；
γc：Cement surplus coefficiert；
fce,k：Strength of cement grade value；
Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
(2) when using additive：
Admixture dosage f%, water-reducing rate g%, solid content h%；
Water consumption：Qs~=Qs* (100-g)/100；
Binder total amount：Jz=Qs~/W；
Additive usage Wc=Jz*f%；
Additive water content：Wh=Wc* (100-h)/100；
Lime paste dosage：Qg~=i%*Jz；
Cement consumption：Qc~=Jz-Qg~；
Actual used water amount：Ws=Qs~-Wh；
Slurry just determines total amount Jy~=Ws+Qc~+Qg~+Wc.
It is more highly preferred to, the determination method of the water-cement ratio of the cement mortar includes：
(1) when not having to additive：
Cement consumption Qc：The cement consumption that strength classes of mortar is corresponded to by masonry mortar mix-design code selects model Enclose, by construction level, lower limit is selected when cement consumption is excellent, typically select median, it is poor to choose limit value determination；
Cement consumption Qc reduction coefficient ∮：When strength of cement mortar is M15 and situations below, strength of cement grade is When 32.5, ∮=1；When strength of cement grade is 42.5, ∮=32.5/42.5；When strength of cement mortar is more than M15, cement Strength grade is 42.5, ∮=1；
Water consumption：Qs=d+ (e-d) * (c-a)/(b-a)；
Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
Slurry just determines total amount：Jy=Qc+Qs；
The water-cement ratio of mortar：W=Qs/ (Qc+Qg)；
(2) when using additive：
Admixture dosage f%, water-reducing rate g%, solid content h%；
Water consumption：Qs~=Qs* (100-g)/100；
Cement amount：Qc~=Qs~/W；
Additive usage Wc=Jz*f%；
Additive water content：Wh=Wc* (100-h)/100；
Actual used water amount Ws=Qs~-Wh；
Slurry just determines total amount Jy~=Ws+Qc~+Wc.
It is more highly preferred to, the determination method of the water-cement ratio of the cement-flying ash mortar includes：
(1) when not having to additive：
Gel material content Qj：The gel material content of strength classes of mortar is corresponded to by masonry mortar mix-design code Application Range, by construction level, lower limit is selected when gel material content is excellent, typically select median, it is poor to choose limit value determination；
Gel material content Qj reduction coefficients ∮：When cement-flying ash mortar intensity is M15 and situations below, strength of cement When grade is 32.5, ∮=1；When strength of cement grade is 42.5, ∮=32.5/42.5；When cement-flying ash mortar intensity is M15 During the above, strength of cement grade 42.5, ∮=1；
Doping quantity of fly ash i%：I grade of flyash 25%, II grade of flyash 20%, III grade of flyash 15%；
Flyash dosage：Qf=Qj*i%；
The dosage of cement：Qc=Qj-Qf；
Water consumption：Qs=d+ (e-d) * (c-a)/(b-a)；
Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
Slurry just determines total amount Jy=Qc+Qs+Qf；
The water-cement ratio W=Qs/ (Qc+Qf) of mortar；
(2) when using additive：
Admixture dosage f%, water-reducing rate g%, solid content h%；
Water consumption：Qs~=Qs* (100-g)/100；
Binder total amount is Jz=Qs~/W；
Additive usage Wc=Jz*f%；
Additive water content：Wh=Wc* (100-h)/100；
Flyash dosage Qf~=i%*Jz；
Cement consumption Qc~=Jz-Qf~；
Actual used water amount Ws=Qs~-Wh；
Slurry just determines total amount Jy~=Ws+Qc~+Qf~+Wc.
Preferably, the minimum amount of the net slurry density of step (1) described preparation is once filled according to no less than net slurry 1.5 times of determinations of detection container gross weight.
Preferably, step (2) fine aggregate proportioning mixing is specially：At least one fine aggregate of constant weight will be dried to, On the premise of workability is met, determine to match with maximum compactness densities.Generally, the fine aggregate modulus of fineness control of mortar System is determined below 2.8 by requirement of engineering.
Preferably, step (2) described fine aggregate includes multiple moduluss of fineness.
Preferably, the sieve test data of step (2) described fine aggregate, apparent density, bulk density, accumulation voidage with And water absorption rate is detected according to ordinary concrete with sandstone quality and test method standard.
Preferably, the calculating of step (2) the fine aggregate population mean particle diameter comprises the following steps：
A, using sieve test data as foundation, set the fine aggregate more than every diagrid and be equivalent to using average grain diameter as the length of side Square；
B, fine aggregate of the screening result less than 2.35mm is converted into admixture or cement content, adjusted as follow-up proportioning It is whole；
C, average grain diameter more than the every diagrid of calculating fine aggregate, calculation formula are：Per average grain diameter more than diagrid=(this diagrid net The length of side of the squared mesh of the length of side of squared mesh+upper diagrid net)/2；
D, fine aggregate population mean particle diameter calculates successively according to below equation produces：
1. cube of average grain diameter more than average external volume per individual particle more than diagrid=per diagrid；
2. the average external volume * fine aggregates of individual particle is apparent close more than quality per individual particle more than diagrid=per diagrid Degree/1000000；
3. the quality of individual particle more than the diagrid of number per fine aggregate more than diagrid=correspondingly tailed over per lattice value/often；
4. fine aggregate population mean particle diameter=per average grain diameter * more than diagrid per diagrid more than coarse aggregate number sum/per lattice The number for tailing over coarse aggregate adds up sum.
Preferably, step (2) the fine aggregate square volume is cube of fine aggregate population mean particle diameter.
Preferably, in step (2) using etc. pressure application determine the formula of fine aggregate clear distance as：Fine aggregate clear distance=fine aggregate is total Compression strength/3.8284 of the preparation strength of the closely knit concretes of body average grain diameter */net slurry.
Preferably, in step (2) using just determine volumetric method determine the method for fine aggregate clear distance as：
The first first density for determining dosage/net slurry for determining volume=net slurry of net slurry
The volume of sand=(1- volume of air-net the first of slurry determines volume)
Fine aggregate clear distance=[(fine aggregate population mean particle diameter)3The volume of/sand)]1/3- fine aggregate population mean particle diameter.
Preferably, step (2) theoretical porosity for calculating fine aggregate successively, the volume, thin of fine aggregate folk prescription dosage The folk prescription dosage of aggregate, and determine that the folk prescription volume of net slurry specifically includes：
1. the theoretical porosity of fine aggregate=[(fine aggregate clear distance+fine aggregate population mean particle diameter)3- fine aggregate square Volume] * 100%/(fine aggregate clear distance+fine aggregate population mean particle diameter)3；
2. the volume of fine aggregate folk prescription dosage=(volume-volume of air of 1- coarse aggregate folk prescription dosages) * be (1- fine aggregates Theoretical porosity)；
3. the apparent density of the volume * fine aggregates of the folk prescription dosage of fine aggregate=fine aggregate folk prescription dosage；
4. the volume of volume-air of the folk prescription volume of net slurry=1- fine aggregate folk prescription dosages.
Preferably, step (3) just fixed net each raw material of slurry in the weight of total amount than being converted into existing net slurry total amount Each plant demand is specially：Now each plant demand of net slurry total amount=each raw material just determines the slurry of total amount/only of the existing net slurries of dosage * Just determine total amount.
Preferably, step (3) it is described slurry bone than calculation formula be：Starch bone than=net slurry folk prescription volume * 100%/ The volume of fine aggregate folk prescription dosage.
Preferably, the index of step (4) described detection includes：Powder contains in the actual moisture content of fine aggregate, fine aggregate Amount, the moisture content of admixture.
Preferably, the optimization of step (5) described production mix proportion is specially：The water-cement ratio of the mortar of determination is increased and decreased 0.05 Trial is carried out, the Indexs measure such as being operated property and performance, selects optimal benchmark to be compared to production mix proportion.
In application scheme, the computational methods or determination method of the index of not detailed description are according to this area production rule Model or standard obtain；Raw material described in technical scheme derives from commercially available.
Based on described above, compared with prior art, the beneficial effect of technical scheme is：
(1) mortar described in technical scheme, the space for setting net slurry is rationally stayed around its fine aggregate, allow fine aggregate Good force transfer capacity is formed with the slurry for playing connection function, ensure that its intensity and workability；
(2) Reasonable adjustment fine aggregate dosage, it is as far as possible net between shortening coarse aggregate under the premise of proof strength and workability Away from the volume drying shrinkage of reduction power transmission deformation and mortar；
(3) relation between Con trolling index foundation and mortar preparation strength is compared to glue, is advantageous to carry out mortar quality With cost control；
(4) volume of admixture is chosen by testing, determines the volume of additive, plays the work such as water reducing ability of additive With matching former material improves the service behaviour of mortar；
(5) can fully according to raw material fluctuation, production with construction link influence, gather materials on the spot, with actual raw material Detection data are foundation, avoid losing contact with reality using empirical data, while can reach quality controllable, reduce cost, save money The effect in source.
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair The present invention is described in further detail.
Technical scheme provides a kind of matching method of mortar, and the matching method comprises the following steps：
(1) just determine net slurry and determine density：The raw material of the net slurry includes cement, water, lime paste, admixture, outer Add agent, determine the raw materials used index of the net slurry, by the strength grade of the mortar of required proportioning, calculate required proportioning Preparation strength, the water-cement ratio of mortar, calculate each the first of raw material by water-cement ratio and determine dosage, then prepare net slurry, and determine net slurry Density.
Wherein：The raw materials used index of the net slurry of the measure is specially：The sand of required proportioning is determined or counted by specification The standard deviation of slurry, 28 days compression strength of net slurry is determined, strength of cement grade value, is determined by specification or test statistics cement is had more than needed Coefficient, experiment determine the volume of admixtures water-reducing ratio and additive, detect the solid content of additive, and experiment determines mixing for admixture Amount, moisture content, intensity activity index and water demand ratio, experiment determine the denseness of lime paste.
The computational methods of the preparation strength of the mortar use below equation：Intensity of preparation strength=mortar of mortar etc. Level * coefficients, the coefficient is according to construction level, and coefficient is 1.15 when the construction level is excellent, when the construction level is general Coefficient is 1.20, and coefficient is 1.25 when the construction level is poor.
The mortar includes mixed mortar, cement mortar, cement-flying ash mortar, and the water-cement ratio of the mortar passes through gelling Total dosage and water consumption determine.
The determination method of the water-cement ratio of the mixed mortar includes：
(1) when being not added with additive：
Cement consumption：Qc=1000* (fm, 0- β) * ∮/(α * fce), wherein, Fm, 0=k*f2, fce=γ c*fce, k；
Lime paste dosage：Qg=350-Qc；
Lime paste volume：I%=Qg*100%/(Qg+Qc)；
Slurry just determines total amount：Jy=Qc+Qg+Qs；
The water-cement ratio W=Qs/ (Qc+Qg) of mortar；
Water consumption Qs=d+ (e-d) * (c-a)/(b-a)；
Wherein：fm,0：Mortar preparation strength, unit Mpa；
K-factor：Construction level, excellent 1.15, general 1.20, poor 1.25；
f2：Strength classes of mortar, unit Mpa；
Qc：Cement consumption, units/kg；
∮：Strength of cement grade reduction coefficient, when strength of cement grade is 32.5, ∮=1, strength of cement grade 42.5 When, ∮=32.5/42.5；
fce：Cement Actual measurement intensity, unit Mpa；
α：Characteristic coefficient takes 3.03, β：Characteristic coefficient takes -15.09；
γc：Cement surplus coefficiert；
fce,k：Strength of cement grade value；
Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
(2) when using additive：
Admixture dosage f%, water-reducing rate g%, solid content h%；
Water consumption：Qs~=Qs* (100-g)/100；
Binder total amount：Jz=Qs~/W；
Additive usage Wc=Jz*f%；
Additive water content：Wh=Wc* (100-h)/100；
Lime paste dosage：Qg~=i%*Jz；
Cement consumption：Qc~=Jz-Qg~；
Actual used water amount：Ws=Qs~-Wh；
Slurry just determines total amount Jy~=Ws+Qc~+Qg~+Wc.
The determination method of the water-cement ratio of the cement mortar includes：
(1) when not having to additive：
Cement consumption Qc：The cement consumption that strength classes of mortar is corresponded to by masonry mortar mix-design code selects model Enclose, by construction level, lower limit is selected when cement consumption is excellent, typically select median, it is poor to choose limit value determination；
Cement consumption Qc reduction coefficient ∮：When strength of cement mortar is M15 and situations below, strength of cement grade is When 32.5, ∮=1；When strength of cement grade is 42.5, ∮=32.5/42.5；When strength of cement mortar is more than M15, cement Strength grade is 42.5, ∮=1；
Water consumption：Qs=d+ (e-d) * (c-a)/(b-a)；
Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
Slurry just determines total amount：Jy=Qc+Qs；
The water-cement ratio of mortar：W=Qs/ (Qc+Qg)；
(2) when using additive：
Admixture dosage f%, water-reducing rate g%, solid content h%；
Water consumption：Qs~=Qs* (100-g)/100；
Cement amount：Qc~=Qs~/W；
Additive usage Wc=Jz*f%；
Additive water content：Wh=Wc* (100-h)/100；
Actual used water amount Ws=Qs~-Wh；
Slurry just determines total amount Jy~=Ws+Qc~+Wc.
The determination method of the water-cement ratio of the cement-flying ash mortar includes：
(1) when not having to additive：
Gel material content Qj：The gel material content of strength classes of mortar is corresponded to by masonry mortar mix-design code Application Range, by construction level, lower limit is selected when gel material content is excellent, typically select median, it is poor to choose limit value determination,
Gel material content Qj reduction coefficients ∮：When cement-flying ash mortar intensity is M15 and situations below, strength of cement When grade is 32.5, ∮=1；When strength of cement grade is 42.5, ∮=32.5/42.5；When cement-flying ash mortar intensity is M15 During the above, strength of cement grade 42.5, ∮=1；
Doping quantity of fly ash i%：I grade of flyash 25%, II grade of flyash 20%, III grade of flyash 15%；
Flyash dosage：Qf=Qj*i%；
The dosage of cement：Qc=Qj-Qf；
Water consumption：Qs=d+ (e-d) * (c-a)/(b-a)；
Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
Slurry just determines total amount Jy=Qc+Qs+Qf；
The water-cement ratio W=Qs/ (Qc+Qf) of mortar；
(2) when using additive：
Admixture dosage f%, water-reducing rate g%, solid content h%；
Water consumption：Qs~=Qs* (100-g)/100；
Binder total amount is Jz=Qs~/W；
Additive usage Wc=Jz*f%；
Additive water content：Wh=Wc* (100-h)/100；
Flyash dosage Qf~=i%*Jz；
Cement consumption Qc~=Jz-Qf~；
Actual used water amount Ws=Qs~-Wh；
Slurry just determines total amount Jy~=Ws+Qc~+Qf~+Wc.
The minimum amount of the net slurry density of the preparation once fills detection container gross weight according to no less than net slurry 1.5 times determination.
(2) fine aggregate and dosage are determined：The fine aggregate of at least one grade is taken, is dried to constant weight, after proportioning mixing, detection Sieve test data, apparent density, bulk density, accumulation voidage and the water absorption rate of fine aggregate, and with sieve test data According to fine aggregate population mean particle diameter is calculated, to carry out volume equivalent conversion by fine aggregate population mean particle diameter, obtaining thin bone Expect square volume, according to fine aggregate population mean particle diameter and fine aggregate square volume, according to etc. pressure application and just determine volume The maximum of method determines fine aggregate clear distance, and the theoretical porosity of fine aggregate, fine aggregate folk prescription are calculated successively by above-mentioned each parameter The volume of dosage, the folk prescription dosage of fine aggregate, and determine the folk prescription volume of net slurry.
Wherein：The fine aggregate matches mixing：At least one fine aggregate of constant weight will be dried to, meeting work Property on the premise of, with maximum compactness densities determine match.Generally, mortar fine aggregate modulus of fineness control 2.8 with Under, determined by requirement of engineering.
The fine aggregate includes multiple moduluss of fineness.
Sieve test data, apparent density, bulk density, accumulation voidage and the water absorption rate of the fine aggregate are according to general Logical concrete is detected with sandstone quality and test method standard.
The calculating of the fine aggregate population mean particle diameter comprises the following steps：
A, using sieve test data as foundation, set the fine aggregate more than every diagrid and be equivalent to using average grain diameter as the length of side Square；
B, fine aggregate of the screening result less than 2.35mm is converted into admixture or cement content, adjusted as follow-up proportioning It is whole；
C, average grain diameter more than the every diagrid of calculating fine aggregate, calculation formula are：Per average grain diameter more than diagrid=(this diagrid net The length of side of the squared mesh of the length of side of squared mesh+upper diagrid net)/2；
D, fine aggregate population mean particle diameter calculates successively according to below equation produces：
1. cube of average grain diameter more than average external volume per individual particle more than diagrid=per diagrid；
2. the average external volume * fine aggregates of individual particle is apparent close more than quality per individual particle more than diagrid=per diagrid Degree/1000000；
3. the quality of individual particle more than the diagrid of number per fine aggregate more than diagrid=correspondingly tailed over per lattice value/often；
4. fine aggregate population mean particle diameter=per average grain diameter * more than diagrid per diagrid more than coarse aggregate number sum/per lattice The number for tailing over coarse aggregate adds up sum.
The fine aggregate square volume is cube of fine aggregate population mean particle diameter.
Using etc. pressure application determine the formula of fine aggregate clear distance as：Fine aggregate clear distance=fine aggregate population mean particle diameter * is closely knit Compression strength/3.8284 of the preparation strength of concrete/net slurry.
Using just determine volumetric method determine the method for fine aggregate clear distance as：
The first first density for determining total amount/net slurry for determining volume=net slurry of net slurry
The volume of sand=(1- volume of air-net the first of slurry determines volume)
Fine aggregate clear distance=[(fine aggregate population mean particle diameter)3The volume of/sand)]1/3- fine aggregate population mean particle diameter.
It is described to calculate the theoretical porosity of fine aggregate, the volume of fine aggregate folk prescription dosage, the folk prescription dosage of fine aggregate successively, And determine that the folk prescription volume of net slurry specifically includes：
1. the theoretical porosity of fine aggregate=[(fine aggregate clear distance+fine aggregate population mean particle diameter)3- fine aggregate square Volume] * 100%/(fine aggregate clear distance+fine aggregate population mean particle diameter)3；
2. the volume of fine aggregate folk prescription dosage=(volume-volume of air of 1- coarse aggregate folk prescription dosages) * be (1- fine aggregates Theoretical porosity)；
3. the apparent density of the volume * fine aggregates of the folk prescription dosage of fine aggregate=fine aggregate folk prescription dosage；
4. the volume of volume-air of the folk prescription volume of net slurry=1- fine aggregate folk prescription dosages.
(3) the preliminary benchmark match ratio of mortar is determined：Changed by just fixed net each raw material of slurry in the weight ratio for just determining total amount Each plant demand of now net slurry total amount is counted as, obtains preliminary benchmark match ratio, and the folk prescription volume and fine aggregate for passing through net slurry The volume of folk prescription dosage obtains starching bone ratio.
Wherein：Just fixed net each raw material of slurry has in the weight of total amount than each plant demand for being converted into now net slurry total amount Body is：Now each plant demand of net slurry total amount=each raw material slightly determines total amount/net the first of slurry of the existing net slurries of dosage * and determines total amount.
It is described slurry bone than calculation formula be：Starch folk prescription volume * 100%/fine aggregate folk prescription dosage of the bone than=net slurry Volume.
(4) preliminary benchmark match ratio trial is pressed, and detects workability：By first adjusting and reducing the clear distance of two-stage fine aggregate, then with Mode of the bone than the clear distance of the control increase and decrease fine aggregate of increase and decrease 0.5~1.5% is starched, trial simultaneously examines workability, to meet workability And clear distance minimum determines the dosage of fine aggregate；The workability includes denseness, water-retaining property, unit weight etc..
Wherein：The index of the detection includes：The content of powder, admixture in the actual moisture content of fine aggregate, fine aggregate Moisture content.
(5) production mix proportion and trial mix detection are determined：Take net slurry, fine aggregate to carry out trial mix by production, Testing index, lead to Cross Testing index and benchmark match ratio is converted into production mix proportion, and carry out the optimization of production mix proportion, each raw material is passed through into life Production match ratio mixture produces the mortar.
Wherein：The optimization of the production mix proportion is specially：The water-cement ratio increase and decrease 0.05 of the mortar of determination is subjected to trial, The Indexs measure such as being operated property and performance, selects optimal benchmark to be compared to production mix proportion.
To verify the technique effect of technical scheme, below by the parameter setting of specific embodiment to the application skill Art scheme elaborates.
Embodiment
Exemplified by preparing common M5 mixing masonry mortar, construction level is general, and bulk is fired common brick (using preceding wet Profit), it is desirable to denseness >=70mm, water retention when constructing>85%, the presetting period is more than 5 hours, and final set is more than 8 hours, compression strength >=5Mpa, workability is good, and the matching method comprises the following steps：
(1) just determine net slurry and determine density：
1st, select the raw material of net slurry for：Big 42.5 cement of cement selection state, sand in sand selective mechanism, lime paste are additional Agent uses dedicated mortar additive.
2nd, feedstock specifications are determined：The mortar strength standard deviation is not more than 1.25 by specification, and actual count standard deviation 1.2 is full Foot requires.Cement surplus coefficiert statistics 1.1, admixtures water-reducing ratio 23% is tested, volume experiment determines 3%, and measure additive is consolidated Content 27%, lime paste denseness detection 119mm, meets to require, 28 days intensity of net slurry is determined by specification.
3rd, the preparation strength of mortar is determined：By existing masonry mortar mix-design code, construction level is general, therefore K =1.2, prepare M5 mixed mortar, Q=5Mpa.Qp=1.2*5=6Mpa.
4th, water-cement ratio is determined, each raw material dosage is determined by water-cement ratio：
(1) when not having to additive.
Strength of cement fce=γ c*fce, k=1.1*42.5=46.75Mpa
∮=32.5/42.5=0.765
A, cement consumption is determined
Qc=1000* (fm, 0- β) * ∮/(α * fce)=1000* (6+15.09) * 0.765/3.03/46.75=113.85 (kg)
B, lime paste dosage is determined
Qg=350-Qc=350-113.85=236.15
Lime paste volume:I%=Qg*100%/(Qg+Qc)=236.15/350=67.47%
C, water consumption is determined：
70~90mm of consistency range, water consumption scope 310~210, denseness when engine request uses are prepared by specification mortar 70mm, plus through being slump-loss estimated 10, therefore by 80 design denseness.
Water consumption scope e~d.
Water consumption when denseness is defined as c：
Qs=d+ (e-d) * (c-a)/(b-a)=210+ (310-210) * (80-70)/(90-70)=260kg
D, slurry just determines total amount Jy=Qc+Qg+Qs=113.85+236.15+260=610kg
E, the water-cement ratio W=Qs/ (Qc+Qg)=0.743 of mortar
(3) when using additive：
Admixture dosage 3%, water-reducing rate 23%, solid content 27%
A, water consumption is reduced to Qs~=Qs* (100-g)/100=260* (100-23)/100=200.2kg.
B, binder total amount is Jz=Qs~/W=200.2/0.743=269.5kg.
C, additive usage Wc=Jz*f%=269.5*3%=8.085kg.
D, the aqueous Wh=Wc* of additive (100-h)/100=8.085* (100-27)/100=5.9kg
E, lime paste dosage Qg~=i%*Jz=67.47*269.5=181.83kg.
F, cement consumption Qc~=Jz-Qg~=269.5-181.83=87.67.
G, actual used water amount Ws=Qs~-Wh=200.2-5.9=194.3kg.
H, slurry just determines total amount Jy~=Ws+Qc~+Qg~+Wc=471.9kg.
Each raw material dosage determines to be shown in Table 1.
Each raw material dosage result of table 1
Preparation strength 6.0 MPa Mixed mortar slurry Water Cement Lime paste Additive Unit
Net paste content 471.9 Kg/m3 Each raw material dosage 194.3 87.7 181.8 8.1 Kg
Admixture ratio 67.5 % Each raw material weight ratio 2.216 1.000 2.074 0.092 Than
5th, just match somebody with somebody net slurry and survey density：The net weight that net slurry is filled according to 2 detection containers is 3.9kg, and amount of preparation is not small In 1.5 times, 2*3.9*1.5=11.7kg, minimum prepares net slurry and takes 12kg.
Show that net each raw material usages of slurry 12kg are shown in Table 2 by above-mentioned amount ratio.
Each raw material usage result during the net slurry 12kg of table 2
Mixed mortar slurry Water Cement Lime paste Additive Unit
Each raw material dosage 194.3 87.7 181.8 8.1 Kg
Each raw material weight ratio 2.216 1.000 2.074 0.092 Than
Survey density trial mix amount 4.94 2.23 4.62 0.21 Kg
The trial mix amount that density is surveyed by selected raw material weighs, and is stirred with pony mixer, by existing (building mortar Basic performance is tried
Test method standard) method determines net slurry density and is：1806, specifically it is shown in Table 3.
The net slurry density measurement result of table 3
(2) fine aggregate and dosage are determined
1st, fine aggregate is determined：Modulus of fineness 3.2 and 2.2 two kind of fine aggregate is selected to be used in mixed way, respectively by 4:6,5:5,6:4 ratios Example is mixed, and it is respectively 1690,1697,1677kg/m to survey their compactness densities3, therefore using modulus of fineness as 3.2 fine aggregates 50% and modulus of fineness be 2.2 fine aggregate 50% mix as the fine aggregate used.
2nd, fine aggregate Indexs measure：It is shown in Table 4, table 5.
The fine aggregate of table 4 screening detection data
The fine aggregate Density Detection data of table 5
Fine aggregate contains powder 0.6%, air content 1%.
3rd, the population mean particle diameter of fine aggregate is calculated：It is shown in Table 6.
The fine aggregate grading testing result of table 6
It is 0.369 to calculate fine aggregate population mean particle diameter, and fine aggregate meets code requirement.
Volume=0.369*0.369*0.369=0.050 of square.
4th, fine aggregate clear distance is calculated：
Etc. pressure application：Preparation strength 6Mpa, 28 days compression strength of net slurry, mortar strength M5 are rich using 42.5 cement Coefficient 1.1,28 days compression strength normal value=1.1*42.5*32.5/42.5=35.75Mpa of net slurry.
ā=6/35.75=0.168
Fine aggregate clear distance=0.168*0.369/3.8284=0.016 (mm)
Just determine volumetric method：Net slurry just determines total amount 471.9 (kg), net slurry density 1806, net slurry volume=471.9/ 1806=0.261, volume=1-0.01-0.261=0.729 of fine aggregate, clear distance=0.041 of fine aggregate.
The Rational Control of fine aggregate the pressure application such as takes and just determines the maximum of volumetric method, i.e., and 0.041>0.016, therefore take 0.041。
5th, fine aggregate folk prescription dosage is calculated：
The theoretical porosity of fine aggregate=[(fine aggregate clear distance+fine aggregate population mean particle diameter)3- fine aggregate square body Product] * 100%/(fine aggregate clear distance+fine aggregate population mean particle diameter)3=27.13%.
The volume of fine aggregate folk prescription dosage=(1-27.13/100) * (1-0.01)=0.721.
Apparent density=0.721*2310=of the volume * fine aggregates of the folk prescription dosage of fine aggregate=fine aggregate folk prescription dosage 1666.5(kg)。
Volume=1-0.010-0.721=of volume-air of folk prescription volume=1- fine aggregate folk prescription dosages of net slurry 0.269。
(3) the preliminary benchmark match ratio of mortar is determined
1st, convert net each raw material dosage of slurry：
Now volume=0.269*1806=485 of net slurry, originally fixed net slurry total amount is 471.9, cement 87.67, Therefore cement consumption is scaled 87.67*485/471.9=90.11, remaining is same.
2nd, preliminary benchmark match ratio is obtained：It is shown in Table 7.
The preliminary benchmark ratio of table 7 determines result
3rd, calculate slurry bone and compare index：Starch volume of the bone than folk prescription volume * 100%/fine aggregate folk prescription dosages of=net slurry =485*100%/1666.5=29.1%.
(4) preliminary benchmark match ratio trial is pressed, and detects workability
1st, trial control methods：In order to make net paste content optimal, it is defined by preliminary benchmark match ratio, it is thin first adjusts and reduce two-stage Aggregate clear distance, be unsatisfactory for adjustment two-stage fine aggregate clear distance, every grade to starch bone than increase and decrease amplitude as 0.5~1.5%, by benchmark Mix calculation method, respective match ratio dosage is calculated respectively, is judged with surveying workability.
Because clear distance is small in the present embodiment, amplitude is adjusted and reduced as 1% to starch bone ratio, is specifically shown in Table 8.
The benchmark match ratio workability of table 8
Fine aggregate clear distance is kept to 28%, 27% with 0.041, -0.0001 and -0.0013, slurry bone ratio by 29.1%.
2nd, by above-mentioned three kinds of match ratio trial mixs, benchmark match ratio is determined：
A, minimum trial mix amount and detection method are detected by existing (building mortar basic performance tests method standard) requirement.
B, under the premise of workability is substantially met, then the detection such as compression strength of mortar is carried out by actual production match ratio. It is unreasonable to readjust raw material or match ratio.
C, mortar uses water-keeping thickening material improves the total dosage and rationally of the material of cracking resistance by binder materials Volume is directly outer to be mixed, and reasonable volume is individually determined by experiment.
Specifically it is shown in Table 9.
The benchmark match ratio workability of table 9 determines
From trial mix testing result：Adjustment is also substantially met than 1, but workability owes poor, by benchmark than reasonable.
(5) production mix proportion and trial mix detection are determined
1st, the parameter that raw material is used for production mix proportion is detected, is mainly had：The actual moisture content of fine aggregate, powder in fine aggregate Content, the water absorption rate of fine aggregate, the moisture content of admixture etc..
In the present embodiment：Rate containing powder is 0.6%.
Specifically it is shown in Table 10.
The moisture content testing result of table 10
2nd, production mix proportion is calculated：Under keeping benchmark match ratio constant by above-mentioned parameter, concrete benchmark match ratio is converted and given birth to Produce match ratio.
3rd, the optimization of mortar production mix proportion：The mortar water-cement ratio increase and decrease 0.05 of determination is subjected to trial, being operated property With the Indexs measure such as performance, optimal benchmark is selected to be compared to production mix proportion.
In the present embodiment, trial mix amount is 55kg, is specifically shown in Table 11, testing result is shown in Table 12.
The production mix proportion of table 11 determines result
The trial mix mortar testing result of table 12
Find out from result above：It is most reasonable to be produced with benchmark match ratio, and mortar preparation is carried out by above match ratio.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change Enter and retouch and also should be regarded as protection scope of the present invention.

Claims (10)

  1. A kind of 1. matching method of mortar, it is characterised in that：The matching method comprises the following steps：
    (1) just determine net paste content and determine density：The raw material of the net slurry includes cement, water, lime paste, admixture, outer Add agent, determine the raw materials used index of the net slurry, by the strength grade of the mortar of required proportioning, calculate required proportioning Preparation strength, the water-cement ratio of mortar, calculate each the first of raw material by water-cement ratio and determine dosage, then prepare net slurry, and determine net slurry Density；
    (2) fine aggregate and dosage are determined：The fine aggregate of at least one grade is taken, constant weight is dried to, after proportioning mixing, detects thin bone The sieve test data of material, apparent density, bulk density, accumulation voidage and water absorption rate, and using sieve test data as according to According to fine aggregate population mean particle diameter is calculated, volume equivalent conversion is carried out by fine aggregate population mean particle diameter, is obtaining fine aggregate just Cube volume, according to fine aggregate population mean particle diameter and fine aggregate square volume, according to etc. pressure application and just determine volumetric method Maximum determines fine aggregate clear distance, and the theoretical porosity of fine aggregate, fine aggregate folk prescription dosage are calculated successively by above-mentioned each parameter Volume, the folk prescription dosage of fine aggregate, and determine the folk prescription volume of net slurry；
    (3) the preliminary benchmark match ratio of mortar is determined：It is converted into by just fixed net each raw material of slurry in the weight ratio of total amount now net Each plant demand of slurry total amount, obtain preliminary benchmark match ratio, and the folk prescription dosage and fine aggregate folk prescription dosage for passing through net slurry Obtain starching bone ratio；
    (4) preliminary benchmark match ratio trial is pressed, and detects workability：By first adjusting and reducing the clear distance of two-stage fine aggregate, then to starch bone Than the mode of the clear distance of the control increase and decrease fine aggregate of increase and decrease 0.5~1.5%, trial simultaneously examines workability, to meet workability and net The dosage of fine aggregate is determined away from minimum；The workability includes denseness, water-retaining property, unit weight；
    (5) production mix proportion and trial mix detection are determined：Take net slurry, fine aggregate to carry out trial mix by production, Testing index, pass through inspection Survey index and benchmark match ratio is converted into production mix proportion, and carry out the optimization of production mix proportion, each raw material is matched somebody with somebody by production Composition and division in a proportion mixture produces the mortar.
  2. A kind of 2. matching method of mortar according to claim 1, it is characterised in that：Step (1) the net slurry of measure Raw materials used index is specially：The standard deviation of the mortar of required proportioning is determined or counted by specification, is determined net slurry and is resisted for 28 days Compressive Strength, strength of cement grade value, by specification determine or test statistics cement redundancy, experiment determine admixtures water-reducing ratio with The volume of additive, the solid content of additive is detected, test the volume for determining admixture, moisture content, intensity activity index and need Water ratio, experiment determine the denseness of lime paste.
  3. A kind of 3. matching method of mortar according to claim 1, it is characterised in that：Mortar includes described in step (1) Mixed mortar, cement mortar, cement-flying ash mortar, the water-cement ratio of the mortar are determined by be gelled total dosage and water consumption.
  4. A kind of 4. matching method of mortar according to claim 3, it is characterised in that：The water-cement ratio of the mixed mortar The method of determination includes：
    (1) when being not added with additive：
    Cement consumption：Qc=1000* (fm, 0- β) * ∮/(α * fce), wherein, Fm, 0=k*f2, fce=γ c*fce, k；
    Lime paste dosage：Qg=350-Qc；
    Lime paste volume：I%=Qg*100%/(Qg+Qc)；
    Slurry just determines total amount：Jy=Qc+Qg+Qs；
    The water-cement ratio W=Qs/ (Qc+Qg) of mortar；
    Water consumption Qs=d+ (e-d) * (c-a)/(b-a)；
    Wherein：fm,0：Mortar preparation strength, unit Mpa；
    K-factor：Construction level, excellent 1.15, general 1.20, poor 1.25；
    f2：Strength classes of mortar, unit Mpa；
    Qc：Cement consumption, units/kg；
    ∮：Strength of cement grade reduction coefficient, when strength of cement grade is 32.5, ∮=1, when strength of cement grade is 42.5, ∮= 32.5/42.5；
    fce：Cement Actual measurement intensity, unit Mpa；
    α：Characteristic coefficient takes 3.03, β：Characteristic coefficient takes -15.09；
    γc：Cement surplus coefficiert；
    fce,k：Strength of cement grade value；
    Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
    (2) when using additive：
    Admixture dosage f%, water-reducing rate g%, solid content h%；
    Water consumption：Qs~=Qs* (100-g)/100；
    Binder total amount：Jz=Qs~/W；
    Additive usage Wc=Jz*f%；
    Additive water content：Wh=Wc* (100-h)/100；
    Lime paste dosage：Qg~=i%*Jz；
    Cement consumption：Qc~=Jz-Qg~；
    Actual used water amount：Ws=Qs~-Wh；
    Slurry just determines total amount Jy~=Ws+Qc~+Qg~+Wc.
  5. A kind of 5. matching method of mortar according to claim 3, it is characterised in that：The water-cement ratio of the cement mortar The method of determination includes：
    (1) when not having to additive：
    Cement consumption Qc：The cement consumption Application Range of strength classes of mortar is corresponded to by masonry mortar mix-design code, is pressed Construction level, lower limit is selected when cement consumption is excellent, typically select median, it is poor to choose limit value determination；
    Cement consumption Qc reduction coefficient ∮：When strength of cement mortar is M15 and situations below, and strength of cement grade is 32.5, ∮=1；When strength of cement grade is 42.5, ∮=32.5/42.5；When strength of cement mortar is more than M15, strength of cement grade For 42.5, ∮=1；
    Water consumption：Qs=d+ (e-d) * (c-a)/(b-a)；
    Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
    Slurry just determines total amount：Jy=Qc+Qs；
    The water-cement ratio of mortar：W=Qs/ (Qc+Qg)；
    (2) when using additive：
    Admixture dosage f%, water-reducing rate g%, solid content h%；
    Water consumption：Qs~=Qs* (100-g)/100；
    Cement amount：Qc~=Qs~/W；
    Additive usage Wc=Jz*f%；
    Additive water content：Wh=Wc* (100-h)/100；
    Actual used water amount Ws=Qs~-Wh；
    Slurry just determines total amount Jy~=Ws+Qc~+Wc.
  6. A kind of 6. matching method of mortar according to claim 3, it is characterised in that：The water of the cement-flying ash mortar Glue than determination method include：
    (1) when not having to additive：
    Gel material content Qj：The gel material content that strength classes of mortar is corresponded to by masonry mortar mix-design code is selected Scope, by construction level, lower limit is selected when gel material content is excellent, typically select median, it is poor to choose limit value determination；
    Gel material content Qj reduction coefficients ∮：When cement-flying ash mortar intensity is M15 and situations below, strength of cement grade For 32.5 when, ∮=1；When strength of cement grade is 42.5, ∮=32.5/42.5；When cement-flying ash mortar intensity is more than M15 When, strength of cement grade 42.5, ∮=1；
    Doping quantity of fly ash i%：I grade of flyash 25%, II grade of flyash 20%, III grade of flyash 15%；
    Flyash dosage：Qf=Qj*i%；
    The dosage of cement：Qc=Qj-Qf；
    Water consumption：Qs=d+ (e-d) * (c-a)/(b-a)；
    Mortar prepares consistency range a~b, and denseness takes middle any value c, water consumption scope d~e；
    Slurry just determines total amount Jy=Qc+Qs+Qf；
    The water-cement ratio W=Qs/ (Qc+Qf) of mortar；
    (2) when using additive：
    Admixture dosage f%, water-reducing rate g%, solid content h%；
    Water consumption：Qs~=Qs* (100-g)/100；
    Binder total amount is Jz=Qs~/W；
    Additive usage Wc=Jz*f%；
    Additive water content：Wh=Wc* (100-h)/100；
    Flyash dosage Qf~=i%*Jz；
    Cement consumption Qc~=Jz-Qf~；
    Actual used water amount Ws=Qs~-Wh；
    Slurry just determines total amount Jy~=Ws+Qc~+Qf~+Wc.
  7. A kind of 7. matching method of mortar according to claim 1, it is characterised in that：Step (2) fine aggregate is overall The calculating of average grain diameter comprises the following steps：
    A, using sieve test data as foundation, the pros being equivalent to per the fine aggregate more than diagrid using average grain diameter as the length of side are set Body；
    B, fine aggregate of the screening result less than 2.35mm is converted into admixture or cement content, as follow-up proportioning adjustment；
    C, average grain diameter more than the every diagrid of calculating fine aggregate, calculation formula are：Average grain diameter=(pros of this diagrid net more than per diagrid The length of side of the squared mesh of the length of side of shape mesh+upper diagrid net)/2；
    D, fine aggregate population mean particle diameter calculates successively according to below equation produces：
    1. cube of average grain diameter more than average external volume per individual particle more than diagrid=per diagrid；
    2. the apparent density of the average external volume * fine aggregates of individual particle more than quality per individual particle more than diagrid=per diagrid/ 1000000；
    3. the quality of individual particle more than the diagrid of number per fine aggregate more than diagrid=correspondingly tailed over per lattice value/often；
    4. more than fine aggregate population mean particle diameter=every diagrid more than the every diagrids of average grain diameter * more than number sum/every diagrid of coarse aggregate The number of coarse aggregate adds up sum.
  8. A kind of 8. matching method of mortar according to claim 1, it is characterised in that：Just to determine volumetric method in step (2) The method for determining fine aggregate clear distance is：
    The first first density for determining total amount/net slurry for determining volume=net slurry of net slurry
    The volume of sand=(1- volume of air-net the first of slurry determines volume)
    Fine aggregate clear distance=[(fine aggregate population mean particle diameter)3The volume of/sand]]1/3- fine aggregate population mean particle diameter.
  9. A kind of 9. matching method of mortar according to claim 1, it is characterised in that：Step (2) is described to be calculated carefully successively The theoretical porosity of aggregate, the volume of fine aggregate folk prescription dosage, the folk prescription dosage of fine aggregate, and determine the folk prescription volume of net slurry Specifically include：
    1. the theoretical porosity of fine aggregate=[(fine aggregate clear distance+fine aggregate population mean particle diameter)3- fine aggregate square volume] * 100%/(fine aggregate clear distance+fine aggregate population mean particle diameter)3；
    2. the volume of fine aggregate folk prescription dosage=(volume-volume of air of 1- coarse aggregate folk prescription dosages) * (theories of 1- fine aggregates Voidage)；
    3. the apparent density of the volume * fine aggregates of the folk prescription dosage of fine aggregate=fine aggregate folk prescription dosage；
    4. the volume of volume-air of the folk prescription volume of net slurry=1- fine aggregate folk prescription dosages.
  10. A kind of 10. matching method of mortar according to claim 1, it is characterised in that：Step (3) the just fixed net slurry Each raw material is specially than each plant demand for being converted into now net slurry total amount in the weight of total amount：Now each plant demand of net slurry total amount The first of slurry of total dosage/only that=each raw material just determines the existing net slurries of dosage * determines total amount.
CN201710869423.0A 2017-09-23 2017-09-23 Mortar proportioning method Active CN107445533B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710869423.0A CN107445533B (en) 2017-09-23 2017-09-23 Mortar proportioning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710869423.0A CN107445533B (en) 2017-09-23 2017-09-23 Mortar proportioning method

Publications (2)

Publication Number Publication Date
CN107445533A true CN107445533A (en) 2017-12-08
CN107445533B CN107445533B (en) 2021-01-15

Family

ID=60497167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710869423.0A Active CN107445533B (en) 2017-09-23 2017-09-23 Mortar proportioning method

Country Status (1)

Country Link
CN (1) CN107445533B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110078450A (en) * 2019-05-30 2019-08-02 四川功予名图文设计有限公司 A kind of light Concrete mix design method of the regeneration for masonry structure brick material time
CN110154231A (en) * 2019-06-26 2019-08-23 东莞市源胜建设工程质量检测有限公司 A kind of modulator approach of optimization mixing sand particle size distribution
CN110372241A (en) * 2019-08-05 2019-10-25 荣成市顺达建材有限公司 A kind of mixed sand and preparation method thereof for quotient's concrete
CN110372320A (en) * 2019-07-11 2019-10-25 东南大学 A kind of phosphate cement cement mortar ratio method
CN111308056A (en) * 2020-04-17 2020-06-19 葛洲坝集团试验检测有限公司 Concrete slump inference method based on mix proportion and raw material performance
CN111517701A (en) * 2020-04-22 2020-08-11 四川功予名图文设计有限公司 Method for preparing regenerated light concrete by utilizing waste and utilization and application
CN111517716A (en) * 2020-04-22 2020-08-11 四川功予名图文设计有限公司 Preparation method and application of regenerated water-permeable concrete pavement brick or slab
CN111763043A (en) * 2019-04-02 2020-10-13 四川功予名图文设计有限公司 Mix proportion design method of regenerated all-light concrete
CN112608076A (en) * 2019-10-23 2021-04-06 厦门天润锦龙建材有限公司 Calculation method for stone powder mortar mixing proportion
CN115504719A (en) * 2022-10-20 2022-12-23 成都建工第七建筑工程有限公司 Cement-based material mixing proportion determining method for 3D printing building

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904894A (en) * 2017-03-28 2017-06-30 湖南城市学院 A kind of recycled high performance concrete mix-design
CN105224727B (en) * 2015-09-11 2018-05-15 郑州大学 A kind of autodensing concrete almixture mixing proportion design method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105224727B (en) * 2015-09-11 2018-05-15 郑州大学 A kind of autodensing concrete almixture mixing proportion design method
CN106904894A (en) * 2017-03-28 2017-06-30 湖南城市学院 A kind of recycled high performance concrete mix-design

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111763043A (en) * 2019-04-02 2020-10-13 四川功予名图文设计有限公司 Mix proportion design method of regenerated all-light concrete
CN110078450A (en) * 2019-05-30 2019-08-02 四川功予名图文设计有限公司 A kind of light Concrete mix design method of the regeneration for masonry structure brick material time
CN110154231A (en) * 2019-06-26 2019-08-23 东莞市源胜建设工程质量检测有限公司 A kind of modulator approach of optimization mixing sand particle size distribution
CN110372320B (en) * 2019-07-11 2022-03-08 东南大学 Phosphate cement mortar proportioning method
CN110372320A (en) * 2019-07-11 2019-10-25 东南大学 A kind of phosphate cement cement mortar ratio method
CN110372241A (en) * 2019-08-05 2019-10-25 荣成市顺达建材有限公司 A kind of mixed sand and preparation method thereof for quotient's concrete
CN110372241B (en) * 2019-08-05 2022-04-01 荣成市顺达建材有限公司 Mixed sand for commercial concrete and preparation method thereof
CN112608076A (en) * 2019-10-23 2021-04-06 厦门天润锦龙建材有限公司 Calculation method for stone powder mortar mixing proportion
CN111308056A (en) * 2020-04-17 2020-06-19 葛洲坝集团试验检测有限公司 Concrete slump inference method based on mix proportion and raw material performance
CN111308056B (en) * 2020-04-17 2022-03-18 葛洲坝集团试验检测有限公司 Concrete slump inference method based on mix proportion and raw material performance
CN111517701A (en) * 2020-04-22 2020-08-11 四川功予名图文设计有限公司 Method for preparing regenerated light concrete by utilizing waste and utilization and application
CN111517716A (en) * 2020-04-22 2020-08-11 四川功予名图文设计有限公司 Preparation method and application of regenerated water-permeable concrete pavement brick or slab
CN115504719A (en) * 2022-10-20 2022-12-23 成都建工第七建筑工程有限公司 Cement-based material mixing proportion determining method for 3D printing building

Also Published As

Publication number Publication date
CN107445533B (en) 2021-01-15

Similar Documents

Publication Publication Date Title
CN107445533A (en) A kind of matching method of mortar
CN108395177B (en) Mix proportion design and optimization method of machine-made sand self-compacting concrete
CN105224727B (en) A kind of autodensing concrete almixture mixing proportion design method
CN105036626B (en) A kind of method of multifactor parametric method design high performance concrete
CN115028419B (en) Design method for self-compacting concrete mix proportion
CN104230223A (en) High-strength and vibration-free self-compacting concrete prepared from machine-made sand
CN106904914A (en) A kind of machine spray drying mixed plastering mortar
CN104987002B (en) A kind of method that cement-based self-leveling mortar level is matched somebody with somebody
CN105731932A (en) Early-strength self-compacting concrete and mix proportion design method thereof
CN107632960B (en) Proportioning method of void concrete
CN107500658B (en) Proportioning method of dense concrete
CN107391790A (en) Green self-compacting concrete and preparation method thereof
CN103182742A (en) High dense pavement base preparation method, proportioning ratio, and sieve with pore size scale not less than 2.4143
CN108585635A (en) A method of improving material granule packed density by optimizing fine and close filling particle diameter distribution
CN109626886B (en) Steel fiber self-compacting concrete mix proportion design method based on mortar rheological property
CN106116281B (en) Coral reef sand concrete and preparation method thereof
CN102923997A (en) Method for preparing high-strength semi-regenerative coarse aggregate concretes
CN114117793A (en) Large-volume concrete mix proportion design method based on hydration heat of mineral admixture
CN112142398B (en) Quantitative design method for mix proportion of machine-made sand self-compacting concrete based on aggregate particle shape
CN105260578B (en) A kind of railway engineering self-compacting concrete component preparation method
CN111763043A (en) Mix proportion design method of regenerated all-light concrete
CN109592942A (en) A kind of three-in-one dry-mixed mortar
CN112608076A (en) Calculation method for stone powder mortar mixing proportion
CN109553349A (en) Self-compacting active powder concrete and its preparation method and application
JP3877562B2 (en) Coal ash concrete and its blending method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant